Nonlocal conductance spectroscopy of Andreev bound states in gate-defined InAs/Al nanowires
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Nonlocal conductance spectroscopy of Andreev bound states in gate-defined InAs/Al nanowires. / Poschl, Andreas; Danilenko, Alisa; Sabonis, Deividas; Kristjuhan, Kaur; Lindemann, Tyler; Thomas, Candice; Manfra, Michael J.; Marcus, Charles M.
In: Physical Review B, Vol. 106, No. 24, 241301, 12.12.2022.Research output: Contribution to journal › Letter › Research › peer-review
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TY - JOUR
T1 - Nonlocal conductance spectroscopy of Andreev bound states in gate-defined InAs/Al nanowires
AU - Poschl, Andreas
AU - Danilenko, Alisa
AU - Sabonis, Deividas
AU - Kristjuhan, Kaur
AU - Lindemann, Tyler
AU - Thomas, Candice
AU - Manfra, Michael J.
AU - Marcus, Charles M.
PY - 2022/12/12
Y1 - 2022/12/12
N2 - The charge character of Andreev bound states (ABSs) in a three-terminal semiconductor-superconductor hybrid nanowire was measured using local and nonlocal tunneling spectroscopy. The device is fabricated using an epitaxial InAs/Al two-dimensional heterostructure with several gate-defined side probes. ABSs give rise to distinct local and nonlocal conductance signatures which evolve as a function of magnetic field and gate voltage. At high magnetic fields, ABSs are found to oscillate around zero as a function of gate voltage, with modifications of their charge consistent with expectations for the total Bardeen-Cooper-Schrieffer charge of ABSs.
AB - The charge character of Andreev bound states (ABSs) in a three-terminal semiconductor-superconductor hybrid nanowire was measured using local and nonlocal tunneling spectroscopy. The device is fabricated using an epitaxial InAs/Al two-dimensional heterostructure with several gate-defined side probes. ABSs give rise to distinct local and nonlocal conductance signatures which evolve as a function of magnetic field and gate voltage. At high magnetic fields, ABSs are found to oscillate around zero as a function of gate voltage, with modifications of their charge consistent with expectations for the total Bardeen-Cooper-Schrieffer charge of ABSs.
KW - MESOSCOPIC SYSTEMS
U2 - 10.1103/PhysRevB.106.L241301
DO - 10.1103/PhysRevB.106.L241301
M3 - Letter
VL - 106
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 24
M1 - 241301
ER -
ID: 332117592